<%@page import="ChartDirector.*, java.util.*" %>
<%
// The data for the bar chart
double[] data = {1350, 1600, 1950, 2300, 2700};

// The labels for the bar chart
String[] labels = {"2001", "2002", "2003", "2004", "2005"};

// The colors for the bars
int[] colors = {0xcc0000, 0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};

// Create a PieChart object of size 600 x 380 pixels.
XYChart c = new XYChart(600, 380);

// Use the white on black palette, which means the default text and line colors are white
c.setColors(Chart.whiteOnBlackPalette);

// Use a vertical gradient color from blue (0000cc) to deep blue (000044) as background. Use rounded
// corners of 30 pixels radius for the top-left and bottom-right corners.
c.setBackground(c.linearGradientColor(0, 0, 0, c.getHeight(), 0x0000cc, 0x000044));
c.setRoundedFrame(0xffffff, 30, 0, 30, 0);

// Add a title using 18pt Times New Roman Bold Italic font. Add 6 pixels top and bottom margins to
// the title.
TextBox title = c.addTitle("Annual Revenue for Star Tech", "Times New Roman Bold Italic", 18);
title.setMargin2(0, 0, 6, 6);

// Add a separator line in white color just under the title
c.addLine(20, title.getHeight(), c.getWidth() - 21, title.getHeight(), 0xffffff);

// Tentatively set the plotarea at (70, 80) and of 480 x 240 pixels in size. Use transparent border
// and white grid lines
c.setPlotArea(70, 80, 480, 240, -1, -1, Chart.Transparent, 0xffffff);

// Swap the axis so that the bars are drawn horizontally
c.swapXY();

// Add a multi-color bar chart layer using the supplied data. Use bar gradient lighting with the
// light intensity from 0.75 to 2.0
c.addBarLayer3(data, colors).setBorderColor(Chart.Transparent, Chart.barLighting(0.75, 2.0));

// Set the labels on the x axis.
c.xAxis().setLabels(labels);

// Show the same scale on the left and right y-axes
c.syncYAxis();

// Set the bottom y-axis title using 10pt Arial Bold font
c.yAxis().setTitle("USD (millions)", "Arial Bold", 10);

// Set y-axes to transparent
c.yAxis().setColors(Chart.Transparent);
c.yAxis2().setColors(Chart.Transparent);

// Disable ticks on the x-axis by setting the tick color to transparent
c.xAxis().setTickColor(Chart.Transparent);

// Set the label styles of all axes to 8pt Arial Bold font
c.xAxis().setLabelStyle("Arial Bold", 8);
c.yAxis().setLabelStyle("Arial Bold", 8);
c.yAxis2().setLabelStyle("Arial Bold", 8);

// Adjust the plot area size, such that the bounding box (inclusive of axes) is 30 pixels from the
// left edge, 25 pixels below the title, 50 pixels from the right edge, and 25 pixels from the
// bottom edge.
c.packPlotArea(30, title.getHeight() + 25, c.getWidth() - 50, c.getHeight() - 25);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='Year {xLabel}: US$ {value}M'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Gradient Bar Shading</title>
    <!-- Include ChartDirector Javascript Library to support chart interactions -->
    <script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        Gradient Bar Shading
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <%= viewer.renderHTML(response) %>
</body>
</html>
